Metricide 14 vs Flourish Excel - The Planted Tank Forum
 
LinkBack Thread Tools Display Modes
post #1 of 14 (permalink) Old 04-19-2016, 06:00 PM Thread Starter
Newbie
 
PTrader: (0/0%)
Join Date: Apr 2016
Posts: 2
Metricide 14 vs Flourish Excel

Hi helpful people,

Just had a few questions regarding the difference between Metricide 14 and Flourish Excel. I'm currently dosing Flourish Excel at 2 ml per 10 gals (5 ml total for 25 gallon tank) daily. I was hoping to switch over to Metricide 14 to save some cash.

My questions: Are the two products identical? If I'm dosing 5 ml excel daily, should I begin dosing 5 ml Metricide 14 daily?

I know the similarity of the products has been discussed before and I've read through many of those threads, but I have not been able to find an answer as to whether or not dosing should be identical. I'd appreciate any answers, and if you'd rather point me to a thread with the answer I'd greatly appreciate that too.

Thanks!
Hydren is offline  
Sponsored Links
Advertisement
 
post #2 of 14 (permalink) Old 04-19-2016, 06:07 PM
Planted Tank Guru
 
Zorfox's Avatar
 
PTrader: (5/100%)
Join Date: Jun 2012
Location: Gainesville, FL
Posts: 2,105
They aren't the same concentration. Metricide 14 is 2.6% and Excel is 1.5%.

Here is the calculation to make 500ml of DIY Excel from my calculator,

Add 288.5ml of Metricide 14 to a 500ml container. Then add 211.5ml of water. This will result in a 1.5% Glutaraldehyde solution. This is an equivalent amount of Glutaraldehyde contained in Seachem Flourish Excel.

Now you can dose this new solution exactly as you were dosing Excel.

Almost forgot. Don't add the activator (small bottle) that comes with it. Just use the stuff in the large bottle.
Zorfox is offline  
post #3 of 14 (permalink) Old 04-19-2016, 06:15 PM
Planted Tank Guru
 
Seattle_Aquarist's Avatar
 
PTrader: (65/100%)
Join Date: Jun 2008
Location: Seattle, WA
Posts: 6,593
Quote:
Originally Posted by Hydren View Post
Hi helpful people,

Just had a few questions regarding the difference between Metricide 14 and Flourish Excel. I'm currently dosing Flourish Excel at 2 ml per 10 gals (5 ml total for 25 gallon tank) daily. I was hoping to switch over to Metricide 14 to save some cash.

My questions: Are the two products identical? If I'm dosing 5 ml excel daily, should I begin dosing 5 ml Metricide 14 daily?

I know the similarity of the products has been discussed before and I've read through many of those threads, but I have not been able to find an answer as to whether or not dosing should be identical. I'd appreciate any answers, and if you'd rather point me to a thread with the answer I'd greatly appreciate that too.

Thanks!
Hi Hydren,

The active ingredient in Seachem Excel is glutaraldehyde which it contains in a concentration of 1.5%. Metricide 14 also contains glutaraldehyde but at a 2.6% concentration. So Metricide 14 is 1.7 times stronger than Excel.

If you are dosing 5 ml of Excel then you would want to dose about 2.9 ml (round to 3.0 ml) of Metricide 14. if you are dosing 2 ml of Excel you would dose 1.15 ml of Metricide 14. BTW do not use the 'activator' that comes with the Metricide.

Roy_________
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

75 Gallon, 2X55W AH Supply CF 8800K, 1X 59W Fluval Plant (3.0); 45 Gallon Tall, 1X 46W Fluval Plant (3.0); 30 Gallon Long; Fluval F&P 2.0; 20 Gallon, 1X26W AH Supply LED; all with CO2 & (Calcined) Montmorillonite Clay
Seattle_Aquarist is offline  
 
post #4 of 14 (permalink) Old 04-19-2016, 06:46 PM Thread Starter
Newbie
 
PTrader: (0/0%)
Join Date: Apr 2016
Posts: 2
Wow thank you both so much! Really appreciate the info, and really looking forward to switching over to Metricide 14!
Hydren is offline  
post #5 of 14 (permalink) Old 04-19-2016, 06:52 PM
Algae Grower
 
PTrader: (0/0%)
Join Date: Mar 2016
Posts: 15
I dose Metricide directly no need to diluate the thing... Your tank size won't change so once you know what dosage Metricide you need to add to your tank daily you wont need to calculate anything along the way
Brainove is offline  
post #6 of 14 (permalink) Old 04-19-2016, 06:58 PM
Planted Member
 
IiScaPeJuNkiEiI's Avatar
 
PTrader: (9/100%)
Join Date: Aug 2013
Location: MI
Posts: 209
I just dose what I normally would for excel. I don't dilute at all. No issues IME..

+1 on NO ACTIVATOR. Just pitch it.

There's plants growing on my algae!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
IiScaPeJuNkiEiI is offline  
post #7 of 14 (permalink) Old 08-05-2016, 05:17 PM
Algae Grower
 
PTrader: (0/0%)
Join Date: Jul 2016
Location: South of Houston Tx.
Posts: 26
First time hearing about this Metricide but I'm new to the site. But I also like to save money so I wanna know more. One thing more is: if someone tells me not to do something I either want to know why or I will do it just to find out. So what is it about the activator?
Locolobo is offline  
post #8 of 14 (permalink) Old 08-05-2016, 05:28 PM
Planted Tank Enthusiast
 
PTrader: (2/100%)
Join Date: Feb 2003
Location: San Juan Capistrano, CA
Posts: 842
Send a message via AIM to IUnknown
Also if you are dosing Metricide without diluting, people do this because when you double a typical excel dose it starts to act like an algeacide. But watch out because some plants like Vals are sensitive to that amount.
IUnknown is offline  
post #9 of 14 (permalink) Old 08-05-2016, 06:02 PM
Planted Tank Enthusiast
 
Watercrayfish's Avatar
 
PTrader: (3/100%)
Join Date: Apr 2016
Location: NJ
Posts: 513
Quote:
Originally Posted by Locolobo View Post
First time hearing about this Metricide but I'm new to the site. But I also like to save money so I wanna know more. One thing more is: if someone tells me not to do something I either want to know why or I will do it just to find out. So what is it about the activator?
So you are the "doer"....LOL

About Activator throw it away, don't even think about mixing(doing) it. Its meant to activate the inner power of Metricide, kidding I dont know why. But the metricide is a very strong sterilization agent used in hospitals and once mixed with activator "Metricide 14" have 14 days of life period as a sterilizer. Note that this liquid is said to be very harmful to inhale or get in direct skin contact, same as Excel. So again don't try to doing it, to prove else wise.

We only need the glutaraldehyde which is present the liquid without any activation.

If dosing directly, use half the dose of excel's recommended dose.

Mixing Metricide 14: 300ml Metricide + 200ml water = 500ml solution which can be dosed like Excel.
Watercrayfish is online now  
post #10 of 14 (permalink) Old 08-05-2016, 06:07 PM
Planted Tank Guru
 
Seattle_Aquarist's Avatar
 
PTrader: (65/100%)
Join Date: Jun 2008
Location: Seattle, WA
Posts: 6,593
Quote:
Originally Posted by Locolobo View Post
First time hearing about this Metricide but I'm new to the site. But I also like to save money so I wanna know more. One thing more is: if someone tells me not to do something I either want to know why or I will do it just to find out. So what is it about the activator?
Hi Locolobo,

Welcome to TPT!

There are several excellent threads on this forum dealing with your subject, and this is an excellent opportunity for you to check out the "Advanced Search" and type in Metricide Activator.

Roy_________
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

75 Gallon, 2X55W AH Supply CF 8800K, 1X 59W Fluval Plant (3.0); 45 Gallon Tall, 1X 46W Fluval Plant (3.0); 30 Gallon Long; Fluval F&P 2.0; 20 Gallon, 1X26W AH Supply LED; all with CO2 & (Calcined) Montmorillonite Clay
Seattle_Aquarist is offline  
post #11 of 14 (permalink) Old 08-05-2016, 06:10 PM
Planted Tank Guru
 
PTrader: (538/100%)
Join Date: Jul 2010
Location: Oregon
Posts: 3,010
Does anyone know one way or the other for sure that excel truly is glut? Seachem claims its polycycloglutaracetal.
nilocg is offline  
post #12 of 14 (permalink) Old 08-05-2016, 06:42 PM
Planted Tank Guru
 
Seattle_Aquarist's Avatar
 
PTrader: (65/100%)
Join Date: Jun 2008
Location: Seattle, WA
Posts: 6,593
Hi nilocg,

Good question! I found this thread in March of 2011. The testing was done by an ex-chemist in India. You will find the following information in that thread:

In 2006 it was determined that: (Wed Apr 12, 2006 9:09 pm post)
Quote:
Flourish Excel contains 1.5% Glutaraldehyde. It may also contain other ingredients but thats too complex to analyse - needs mass spectrometer and HPLC which are out of reach of mine at present.
And in the same thread:
Quote:
Here's an extract from the MSDS of Flourish Excel from Seachem. /ParaGuard, HealthGuard , Pond HealthGuard, *Flourish Excel*, StressGuard [NFPA 1,0,1]: *Principal ingredient is glutaraldehyde *with ameliorating ingredients, pH 7. ParaGuard also contains malachite green. Malachite green is a possible carcinogen. Ingestion may cause severe gastric disturbance. May cause moderate irritation of mouth. If ingested, drink large quantities of milk or water. Universal antidote (charcoal) is useful. If enough is swallowed to cause distress, seek medical attention. Eye contact will cause severe irritation. Flush eyes copiously with water. Seek medical attention.
Although MSDS requirements have changed over the years to protect 'proprietary formulas' I think we can be assured that the active ingredient has been determined. Need more evidence? How about the Seachem July 7, 2006 MSDS for Flourish Excel?



FYI Polycyclic is a chemical term meaning more than one carbon ring; glutaraldehyde typically has 2 carbon rings.

Glutaraldehyde molecule

Roy_________
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

75 Gallon, 2X55W AH Supply CF 8800K, 1X 59W Fluval Plant (3.0); 45 Gallon Tall, 1X 46W Fluval Plant (3.0); 30 Gallon Long; Fluval F&P 2.0; 20 Gallon, 1X26W AH Supply LED; all with CO2 & (Calcined) Montmorillonite Clay

Last edited by Seattle_Aquarist; 08-05-2016 at 07:23 PM. Reason: added info
Seattle_Aquarist is offline  
post #13 of 14 (permalink) Old 08-05-2016, 09:08 PM
Planted Tank Guru
 
PTrader: (538/100%)
Join Date: Jul 2010
Location: Oregon
Posts: 3,010
Ya thats what my conclusion was after researching, but I have spoken with a few people about it and they believed that it was functionally different.
nilocg is offline  
post #14 of 14 (permalink) Old 08-05-2016, 09:32 PM
Algae Grower
 
PTrader: (1/100%)
Join Date: May 2015
Location: Arkansas
Posts: 114
Quote:
Originally Posted by nilocg View Post
Does anyone know one way or the other for sure that excel truly is glut? Seachem claims its polycycloglutaracetal.
Here is an interesting take I found researching this:
Excel vs Glutaraldehyde
Vidikron is offline  
Reply

Tags
None

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the The Planted Tank Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome